This came during a meeting in Glasgow on the sidelines of the UN Climate Change Conference (COP26) in which El-Sisi added that regional stability requires "undermining the activities of extremist groups."
El-Sisi and Schallenberg tackled a host of regional issues, including the Palestinian cause, reviving the Peace Process, and Egypt's efforts to consolidate the ceasefire in Gaza.
They also reviewed the latest on the Grand Ethiopian Renaissance Dam (GERD), a controversial hydropower project Addis Ababa is building on the Blue Nile, the main tributary of the River Nile.
El-Sisi stressed that preserving Egypt's historic rights in the Nile are a top priority, Egyptian Presidential Spokesman Bassam Rady said.
"It is an existential matter that needs the efforts of the international community to reach a legally binding deal on the filling and operation of the dam in a way that preserves Egypt's water security," the president said.
The two sides tackled means of enhancing trade and economic relations in light of Egypt's efforts to improve the business climate and encourage the private sector to attract foreign direct investments, Rady said.
The Austrian chancellor expressed his appreciation of Egypt's efforts to combat irregular migration, terrorism, and extremism and to renew the religious discourse.
These efforts, Schallenberg said, consolidate Egypt’s "effective and influential" regional role under El-Sisi's leadership to spread the culture of tolerance, coexistence, acceptance of the other, and respect for freedom of belief, noted the presidential statement.